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    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    <aside>
        <h2>标题</h2>
        <ul>
            <li>目录1</li>
            <li>目录2</li>
        </ul>
        <h2>标题2<h2>
        <ul>
            <li>目录1</li>
            <li>目录2</li>
        </ul>
        
    </aside>
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